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-rw-r--r--src/core/hle/service/apt/apt.cpp286
-rw-r--r--src/core/hle/service/cfg/cfg.cpp2
-rw-r--r--src/core/hle/service/cfg/cfg.h2
3 files changed, 155 insertions, 135 deletions
diff --git a/src/core/hle/service/apt/apt.cpp b/src/core/hle/service/apt/apt.cpp
index 58d94768c..8c0ba73f2 100644
--- a/src/core/hle/service/apt/apt.cpp
+++ b/src/core/hle/service/apt/apt.cpp
@@ -19,6 +19,7 @@
#include "core/hle/service/apt/apt_s.h"
#include "core/hle/service/apt/apt_u.h"
#include "core/hle/service/apt/bcfnt/bcfnt.h"
+#include "core/hle/service/cfg/cfg.h"
#include "core/hle/service/fs/archive.h"
#include "core/hle/service/ptm/ptm.h"
#include "core/hle/service/service.h"
@@ -198,6 +199,143 @@ void Initialize(Service::Interface* self) {
Kernel::g_handle_table.Create(slot_data->parameter_event).Unwrap());
}
+static u32 DecompressLZ11(const u8* in, u8* out) {
+ u32_le decompressed_size;
+ memcpy(&decompressed_size, in, sizeof(u32));
+ in += 4;
+
+ u8 type = decompressed_size & 0xFF;
+ ASSERT(type == 0x11);
+ decompressed_size >>= 8;
+
+ u32 current_out_size = 0;
+ u8 flags = 0, mask = 1;
+ while (current_out_size < decompressed_size) {
+ if (mask == 1) {
+ flags = *(in++);
+ mask = 0x80;
+ } else {
+ mask >>= 1;
+ }
+
+ if (flags & mask) {
+ u8 byte1 = *(in++);
+ u32 length = byte1 >> 4;
+ u32 offset;
+ if (length == 0) {
+ u8 byte2 = *(in++);
+ u8 byte3 = *(in++);
+ length = (((byte1 & 0x0F) << 4) | (byte2 >> 4)) + 0x11;
+ offset = (((byte2 & 0x0F) << 8) | byte3) + 0x1;
+ } else if (length == 1) {
+ u8 byte2 = *(in++);
+ u8 byte3 = *(in++);
+ u8 byte4 = *(in++);
+ length = (((byte1 & 0x0F) << 12) | (byte2 << 4) | (byte3 >> 4)) + 0x111;
+ offset = (((byte3 & 0x0F) << 8) | byte4) + 0x1;
+ } else {
+ u8 byte2 = *(in++);
+ length = (byte1 >> 4) + 0x1;
+ offset = (((byte1 & 0x0F) << 8) | byte2) + 0x1;
+ }
+
+ for (u32 i = 0; i < length; i++) {
+ *out = *(out - offset);
+ ++out;
+ }
+
+ current_out_size += length;
+ } else {
+ *(out++) = *(in++);
+ current_out_size++;
+ }
+ }
+ return decompressed_size;
+}
+
+static bool LoadSharedFont() {
+ u8 font_region_code;
+ switch (CFG::GetRegionValue()) {
+ case 4: // CHN
+ font_region_code = 2;
+ break;
+ case 5: // KOR
+ font_region_code = 3;
+ break;
+ case 6: // TWN
+ font_region_code = 4;
+ break;
+ default: // JPN/EUR/USA
+ font_region_code = 1;
+ break;
+ }
+
+ const u64_le shared_font_archive_id_low = 0x0004009b00014002 | ((font_region_code - 1) << 8);
+ const u64_le shared_font_archive_id_high = 0x00000001ffffff00;
+ std::vector<u8> shared_font_archive_id(16);
+ std::memcpy(&shared_font_archive_id[0], &shared_font_archive_id_low, sizeof(u64));
+ std::memcpy(&shared_font_archive_id[8], &shared_font_archive_id_high, sizeof(u64));
+ FileSys::Path archive_path(shared_font_archive_id);
+ auto archive_result = Service::FS::OpenArchive(Service::FS::ArchiveIdCode::NCCH, archive_path);
+ if (archive_result.Failed())
+ return false;
+
+ std::vector<u8> romfs_path(20, 0); // 20-byte all zero path for opening RomFS
+ FileSys::Path file_path(romfs_path);
+ FileSys::Mode open_mode = {};
+ open_mode.read_flag.Assign(1);
+ auto file_result = Service::FS::OpenFileFromArchive(*archive_result, file_path, open_mode);
+ if (file_result.Failed())
+ return false;
+
+ auto romfs = std::move(file_result).Unwrap();
+ std::vector<u8> romfs_buffer(romfs->backend->GetSize());
+ romfs->backend->Read(0, romfs_buffer.size(), romfs_buffer.data());
+ romfs->backend->Close();
+
+ const char16_t* file_name[4] = {u"cbf_std.bcfnt.lz", u"cbf_zh-Hans-CN.bcfnt.lz",
+ u"cbf_ko-Hang-KR.bcfnt.lz", u"cbf_zh-Hant-TW.bcfnt.lz"};
+ const u8* font_file =
+ RomFS::GetFilePointer(romfs_buffer.data(), {file_name[font_region_code - 1]});
+ if (font_file == nullptr)
+ return false;
+
+ struct {
+ u32_le status;
+ u32_le region;
+ u32_le decompressed_size;
+ INSERT_PADDING_WORDS(0x1D);
+ } shared_font_header{};
+ static_assert(sizeof(shared_font_header) == 0x80, "shared_font_header has incorrect size");
+
+ shared_font_header.status = 2; // successfully loaded
+ shared_font_header.region = font_region_code;
+ shared_font_header.decompressed_size =
+ DecompressLZ11(font_file, shared_font_mem->GetPointer(0x80));
+ std::memcpy(shared_font_mem->GetPointer(), &shared_font_header, sizeof(shared_font_header));
+ *shared_font_mem->GetPointer(0x83) = 'U'; // Change the magic from "CFNT" to "CFNU"
+
+ return true;
+}
+
+static bool LoadLegacySharedFont() {
+ // This is the legacy method to load shared font.
+ // The expected format is a decrypted, uncompressed BCFNT file with the 0x80 byte header
+ // generated by the APT:U service. The best way to get is by dumping it from RAM. We've provided
+ // a homebrew app to do this: https://github.com/citra-emu/3dsutils. Put the resulting file
+ // "shared_font.bin" in the Citra "sysdata" directory.
+ std::string filepath = FileUtil::GetUserPath(D_SYSDATA_IDX) + SHARED_FONT;
+
+ FileUtil::CreateFullPath(filepath); // Create path if not already created
+ FileUtil::IOFile file(filepath, "rb");
+ if (file.IsOpen()) {
+ file.ReadBytes(shared_font_mem->GetPointer(), file.GetSize());
+ return true;
+ }
+
+ return false;
+}
+
void GetSharedFont(Service::Interface* self) {
IPC::RequestParser rp(Kernel::GetCommandBuffer(), 0x44, 0, 0); // 0x00440000
IPC::RequestBuilder rb = rp.MakeBuilder(2, 2);
@@ -206,11 +344,20 @@ void GetSharedFont(Service::Interface* self) {
Core::Telemetry().AddField(Telemetry::FieldType::Session, "RequiresSharedFont", true);
if (!shared_font_loaded) {
- LOG_ERROR(Service_APT, "shared font file missing - go dump it from your 3ds");
- rb.Push<u32>(-1); // TODO: Find the right error code
- rb.Skip(1 + 2, true);
- Core::System::GetInstance().SetStatus(Core::System::ResultStatus::ErrorSharedFont);
- return;
+ // On real 3DS, font loading happens on booting. However, we load it on demand to coordinate
+ // with CFG region auto configuration, which happens later than APT initialization.
+ if (LoadSharedFont()) {
+ shared_font_loaded = true;
+ } else if (LoadLegacySharedFont()) {
+ LOG_WARNING(Service_APT, "Loaded shared font by legacy method");
+ shared_font_loaded = true;
+ } else {
+ LOG_ERROR(Service_APT, "shared font file missing - go dump it from your 3ds");
+ rb.Push<u32>(-1); // TODO: Find the right error code
+ rb.Skip(1 + 2, true);
+ Core::System::GetInstance().SetStatus(Core::System::ResultStatus::ErrorSharedFont);
+ return;
+ }
}
// The shared font has to be relocated to the new address before being passed to the
@@ -863,125 +1010,6 @@ void CheckNew3DS(Service::Interface* self) {
LOG_WARNING(Service_APT, "(STUBBED) called");
}
-static u32 DecompressLZ11(const u8* in, u8* out) {
- u32_le decompressed_size;
- memcpy(&decompressed_size, in, sizeof(u32));
- in += 4;
-
- u8 type = decompressed_size & 0xFF;
- ASSERT(type == 0x11);
- decompressed_size >>= 8;
-
- u32 current_out_size = 0;
- u8 flags = 0, mask = 1;
- while (current_out_size < decompressed_size) {
- if (mask == 1) {
- flags = *(in++);
- mask = 0x80;
- } else {
- mask >>= 1;
- }
-
- if (flags & mask) {
- u8 byte1 = *(in++);
- u32 length = byte1 >> 4;
- u32 offset;
- if (length == 0) {
- u8 byte2 = *(in++);
- u8 byte3 = *(in++);
- length = (((byte1 & 0x0F) << 4) | (byte2 >> 4)) + 0x11;
- offset = (((byte2 & 0x0F) << 8) | byte3) + 0x1;
- } else if (length == 1) {
- u8 byte2 = *(in++);
- u8 byte3 = *(in++);
- u8 byte4 = *(in++);
- length = (((byte1 & 0x0F) << 12) | (byte2 << 4) | (byte3 >> 4)) + 0x111;
- offset = (((byte3 & 0x0F) << 8) | byte4) + 0x1;
- } else {
- u8 byte2 = *(in++);
- length = (byte1 >> 4) + 0x1;
- offset = (((byte1 & 0x0F) << 8) | byte2) + 0x1;
- }
-
- for (u32 i = 0; i < length; i++) {
- *out = *(out - offset);
- ++out;
- }
-
- current_out_size += length;
- } else {
- *(out++) = *(in++);
- current_out_size++;
- }
- }
- return decompressed_size;
-}
-
-static bool LoadSharedFont() {
- // TODO (wwylele): load different font archive for region CHN/KOR/TWN
- const u64_le shared_font_archive_id_low = 0x0004009b00014002;
- const u64_le shared_font_archive_id_high = 0x00000001ffffff00;
- std::vector<u8> shared_font_archive_id(16);
- std::memcpy(&shared_font_archive_id[0], &shared_font_archive_id_low, sizeof(u64));
- std::memcpy(&shared_font_archive_id[8], &shared_font_archive_id_high, sizeof(u64));
- FileSys::Path archive_path(shared_font_archive_id);
- auto archive_result = Service::FS::OpenArchive(Service::FS::ArchiveIdCode::NCCH, archive_path);
- if (archive_result.Failed())
- return false;
-
- std::vector<u8> romfs_path(20, 0); // 20-byte all zero path for opening RomFS
- FileSys::Path file_path(romfs_path);
- FileSys::Mode open_mode = {};
- open_mode.read_flag.Assign(1);
- auto file_result = Service::FS::OpenFileFromArchive(*archive_result, file_path, open_mode);
- if (file_result.Failed())
- return false;
-
- auto romfs = std::move(file_result).Unwrap();
- std::vector<u8> romfs_buffer(romfs->backend->GetSize());
- romfs->backend->Read(0, romfs_buffer.size(), romfs_buffer.data());
- romfs->backend->Close();
-
- const u8* font_file = RomFS::GetFilePointer(romfs_buffer.data(), {u"cbf_std.bcfnt.lz"});
- if (font_file == nullptr)
- return false;
-
- struct {
- u32_le status;
- u32_le region;
- u32_le decompressed_size;
- INSERT_PADDING_WORDS(0x1D);
- } shared_font_header{};
- static_assert(sizeof(shared_font_header) == 0x80, "shared_font_header has incorrect size");
-
- shared_font_header.status = 2; // successfully loaded
- shared_font_header.region = 1; // region JPN/EUR/USA
- shared_font_header.decompressed_size =
- DecompressLZ11(font_file, shared_font_mem->GetPointer(0x80));
- std::memcpy(shared_font_mem->GetPointer(), &shared_font_header, sizeof(shared_font_header));
- *shared_font_mem->GetPointer(0x83) = 'U'; // Change the magic from "CFNT" to "CFNU"
-
- return true;
-}
-
-static bool LoadLegacySharedFont() {
- // This is the legacy method to load shared font.
- // The expected format is a decrypted, uncompressed BCFNT file with the 0x80 byte header
- // generated by the APT:U service. The best way to get is by dumping it from RAM. We've provided
- // a homebrew app to do this: https://github.com/citra-emu/3dsutils. Put the resulting file
- // "shared_font.bin" in the Citra "sysdata" directory.
- std::string filepath = FileUtil::GetUserPath(D_SYSDATA_IDX) + SHARED_FONT;
-
- FileUtil::CreateFullPath(filepath); // Create path if not already created
- FileUtil::IOFile file(filepath, "rb");
- if (file.IsOpen()) {
- file.ReadBytes(shared_font_mem->GetPointer(), file.GetSize());
- return true;
- }
-
- return false;
-}
-
void Init() {
AddService(new APT_A_Interface);
AddService(new APT_S_Interface);
@@ -995,16 +1023,6 @@ void Init() {
MemoryPermission::ReadWrite, MemoryPermission::Read, 0,
Kernel::MemoryRegion::SYSTEM, "APT:SharedFont");
- if (LoadSharedFont()) {
- shared_font_loaded = true;
- } else if (LoadLegacySharedFont()) {
- LOG_WARNING(Service_APT, "Loaded shared font by legacy method");
- shared_font_loaded = true;
- } else {
- LOG_WARNING(Service_APT, "Unable to load shared font");
- shared_font_loaded = false;
- }
-
lock = Kernel::Mutex::Create(false, "APT_U:Lock");
cpu_percent = 0;
diff --git a/src/core/hle/service/cfg/cfg.cpp b/src/core/hle/service/cfg/cfg.cpp
index 3dbeb27cc..f26a1f65f 100644
--- a/src/core/hle/service/cfg/cfg.cpp
+++ b/src/core/hle/service/cfg/cfg.cpp
@@ -168,7 +168,7 @@ void GetCountryCodeID(Service::Interface* self) {
cmd_buff[2] = country_code_id;
}
-static u32 GetRegionValue() {
+u32 GetRegionValue() {
if (Settings::values.region_value == Settings::REGION_VALUE_AUTO_SELECT)
return preferred_region_code;
diff --git a/src/core/hle/service/cfg/cfg.h b/src/core/hle/service/cfg/cfg.h
index 1659ebf32..282b6936b 100644
--- a/src/core/hle/service/cfg/cfg.h
+++ b/src/core/hle/service/cfg/cfg.h
@@ -101,6 +101,8 @@ void GetCountryCodeString(Service::Interface* self);
*/
void GetCountryCodeID(Service::Interface* self);
+u32 GetRegionValue();
+
/**
* CFG::SecureInfoGetRegion service function
* Inputs:
generated by cgit v1.2.3 (git 2.25.1) at 2025-11-04 14:45:23 +0000